ack/mach/proto/fp/FP_shift.h

/*
  (c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands.
  See the copyright notice in the ACK home directory, in the file "Copyright".
*/

/* $Header$ */

/*
	include file for floating point package
*/

# define	CARRYBIT	0x80000000L
# define	NORMBIT		0x80000000L
# define	EXP_STORE	16


				/* parameters for Single Precision */
#define SGL_EXPSHIFT	7
#define SGL_M1LEFT	8
#define SGL_ZERO	0xffffff80L
#define SGL_EXACT	0xff
#define SGL_RUNPACK	SGL_M1LEFT

#define SGL_ROUNDUP	0x80
#define	SGL_CARRYOUT	0x01000000L
#define	SGL_MASK	0x007fffffL

				/* parameters for Double Precision */
#ifndef	IEEEFORMAT

#define DBL_EXPSHIFT	SGL_EXPSHIFT
#define DBL_M1LEFT	SGL_M1LEFT

#define	DBL_LPACK	DBL_RUNPACK
#define	DBL_RPACK	DBL_LUNPACK

#define DBL_ZERO	SGL_ZERO
#define DBL_EXACT	SGL_EXACT

#define DBL_RUNPACK	DBL_M1LEFT
#define DBL_LUNPACK	32-DBL_M1LEFT

#define DBL_ROUNDUP	SGL_ROUNDUP
#define	DBL_CARRYOUT	SGL_CARRYOUT
#define	DBL_MASK	SGL_MASK

#else
				/* used in extend.c */

#define DBL_EXPSHIFT	4

#define DBL_M1LEFT	11

#define	DBL_RPACK	32-DBL_M1LEFT
#define	DBL_LPACK	DBL_M1LEFT

				/* used in compact.c */

#define DBL_ZERO	0xfffffd00L

#define DBL_EXACT	0x7ff

#define DBL_RUNPACK	DBL_M1LEFT
#define DBL_LUNPACK	32-DBL_RUNPACK

#define DBL_ROUNDUP	0x400
#define	DBL_CARRYOUT	0x00200000L
#define	DBL_MASK	0x000fffffL

#endif	IEEEFORMAT